On the Curve support site, you can find this article: https://support.imaginecurve.com/hc/en-gb/articles/115000969009-PayPal-have-charged-my-purchase-in-the-wrong-currency
I think it is out of date. Paypal totally refuses to change the default currency of a card, i tried by email, phone, many many times for months. They send me back to Curve every time. So when I buy something with paypal in € (I live in Belgium), paypal automatically converts it to GBP with a thief conversion rate. I know that there is an extra steps on the purchase screen to change the currency each time, but it is not always possible.
Why this article is still online if it’s not possible to do it ? Has anyone already succeeded in asking paypal to do it?
PayPal have charged my purchase in the wrong currency
If you find that PayPal is charging your Curve card in the wrong currency, don’t worry! You can change your payment options in PayPal to always pay for a transaction in the currency that the vendor is selling in.
So, if you’re using your Curve card with an EUR card selected as your underlying payment card, and you’re making an EUR transaction, PayPal will charge you in EUR.
You can set this option by contacting PayPal here.